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TOS BUAJ28 Universal Cylindical Grinder

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TOS BUAJ28 Universal Cylindical Grinder Specification

Product Type
Universal Cylindrical Grinder

General Use
Precision external and internal grinding of cylindrical and conical surfaces

Material
Cast Iron, Steel

Type
Hydraulic/Manual

Capacity
280 mm oscillation diameter

Weight (kg)
Approx. 2200

Computerized
No

Automatic
Semi-Automatic

Control System
Manual/Hand operated

Drive Type
Belt driven

Grinding Diameter
280 mm (max swing over bed)

Grinding Length
1000 mm (max)

Spindle Speed
30 420 RPM

Grinding Wheel Size
350 x 40 x 127 mm (D x T x Bore)

Voltage
400 V / 3 Phase / 50 Hz

Dimension (L*W*H)
Approx. 2500 x 1400 x 1400 mm

Feature
Sturdy construction, High precision, Long service life

Color
Green/Grey

Coolant System
Standard with machine

Floor Space Required
Approx. 3500 x 2000 mm

Distance Between Centers
1000 mm

Max Workpiece Weight (between centers)
100 kg

Workhead Spindle Taper
Morse 4

Internal Grinding Attachment
Available

Tailstock Taper
Morse 3

Surface Finish
< 2 microns Ra

Table Swivel Range
+/- 9

About TOS BUAJ28 Universal Cylindical Grinder

Make - TOS (Czech Republic)

Model - BUAJ 28/1000

Center Height - 145 mm

Max. Job Diameter - 280 mm

Max. Length of Job - 1000 mm

Grinding Wheel Size - 400 mm Diameter x 50 mm Width

Work-Head Speeds - 22.4 rpm to 710 rpm

Least Count - 1 Micron (0.001 mm)

- Equipped with Internal Grinding Attachment .

- With 2 x 2-point steady, 3-point steady, 2 x job supports.

- Equipped with DRO.

- Features like Rapid Travel of Table, Delay, Auto-Cut, Plunge, Auto-Compensation.

- The Machine can work in Auto-Cycle Mode.

- Complete with coolant tank & pump.

- One of the latest models of conventional machines made by TOS.

- Machine is in excellent working condition.

Video link - https://youtu.be/mJ4dFcBKZDk

Precision Grinding for Multiple Applications

Engineered for supreme accuracy, the TOS BUAJ28 is perfect for precision external and internal grinding of both cylindrical and conical surfaces. Efficiency is enhanced with a wide oscillation diameter and a max distance of 1000 mm between centers, making it suitable for a variety of workpieces.

Robust and Versatile Performance

Built with heavy-duty cast iron and featuring both hydraulic and manual controls, this grinder handles large workpieces up to 100 kg reliably. Its semi-automatic operation and standard coolant system ensure consistent performance during demanding tasks.

Superior Surface Finish and Durability

Achieve exceptional surface smoothness with less than 2 microns Ra finish. The sturdy construction and long-lasting componentsbacked by a high-quality belt-driven systemguarantee extended service in production environments.

FAQs of TOS BUAJ28 Universal Cylindical Grinder:

Q: How does the internal grinding attachment benefit the machining process?

A: The internal grinding attachment enables the TOS BUAJ28 to perform precise internal grinding operations, increasing the machines versatility. This feature allows machining of holes or bores with high accuracy, complementing its external grinding capabilities without needing separate equipment.

Q: What types of materials can be processed on the TOS BUAJ28 Universal Cylindrical Grinder?

A: This grinder is designed for precision work on cast iron, steel, and similar materials. Its robust construction and high precision make it suitable for handling various industrial components requiring exact tolerances and surface finishes.

Q: When should the coolant system be used during grinding operations?

A: The built-in coolant system should be used during all grinding operations to minimize heat buildup, ensure smooth finishes below 2 microns Ra, and prevent thermal deformation of both the workpiece and grinding wheel. It also enhances both tool life and safety.

Q: Where is optimal floor space placement for installing the TOS BUAJ28?

A: Ideally, the grinder should be placed on a solid, vibration-free floor with approximately 3500 x 2000 mm of clear space. This ensures safe operation and sufficient room for handling workpieces and maintenance tasks.

Q: What is the process for adjusting the workhead and tailstock tapers?

A: The workhead spindle uses a Morse 4 taper, while the tailstock operates with a Morse 3 taper. Workpieces are mounted using corresponding taper accessories, and adjustments are made manually to ensure proper alignment and secure holding during grinding.

Q: How does the semi-automatic operation improve usage efficiency?

A: The semi-automatic function reduces manual workload by automating certain grinding cycles, increasing productivity and consistency. Manual controls remain available for adjustments and precise operations, delivering a blend of flexibility and efficiency.

Q: What are the main benefits of using the TOS BUAJ28 for high-precision grinding?

A: The primary benefits include achieving high-accuracy finishes (< 2 microns Ra), sturdy construction for stability, long service life, adaptability for a variety of workpiece sizes, and user-friendly manual or hydraulic control systems to accommodate diverse industrial needs.

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